Revert "[compiler-rt] Move endif to correct place (#100342)"

This reverts commit 558a895.

This was a fix-forward for
#99613 that unfortunately
didn't work for the Android sanitizer buildbot. More information in that
pull request.

compiler-rt/lib/sanitizer_common/sanitizer_linux.cpp

@@ -2237,7 +2237,6 @@ static const char *RegNumToRegName(int reg) {
     case 31:
       return "sp";
 #    endif
-#  endif  // SANITIZER_LINUX
     default:
       return NULL;
   }
@@ -2303,6 +2302,7 @@ static void DumpSingleReg(ucontext_t *ctx, int RegNum) {
   (void)RegName;
 #    endif
 }
+#  endif
 
 void SignalContext::DumpAllRegisters(void *context) {
   ucontext_t *ucontext = (ucontext_t *)context;